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JZ, I already discussed that topic. If what you quoted is true and that’s what I think, the receiver performance is no worse than predicted from the RF sweep trace. How big is the benefit? I don’t know but I’m not too worried about that. Quadrature sampling followed by active roofing filter is fairly robust against overload. One thing I don’t know is whether the receiver gain is appropriate for the high bands. We’ll find that out soon.

I would like to remind you that a major problem in the receiver is the difficulty in making the BPF perform as designed. Contrary to popular belief, Analog and rf engineering should not be about black art or voodoo tweaking but instead should be about understanding what is responsible for the discrepancy between the theory and the measured performance and how to fill that gap.